Climatological Report (Monthly)
Issued by NWS

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000
CXUS55 KRIW 111852
CLMRKS

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1252 PM MDT SUN JUN 11 2023

...................................

...THE ROCK SPRINGS WY CLIMATE SUMMARY FOR THE MONTH OF MAY 2023...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1948 TO 2023

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
RECORD
 HIGH             90   05/31/2002
 LOW              18   05/07/2010
                       05/05/2010
                       05/02/1954
HIGHEST           77   05/21
LOWEST            31   05/07
AVG. MAXIMUM    67.4               63.2     4.2
AVG. MINIMUM    41.2               38.4     2.8
MEAN            54.3               50.8     3.5
DAYS MAX >= 90     0
DAYS MAX <= 32     0
DAYS MIN <= 32     2
DAYS MIN <= 0      0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        3.67   1995
 MINIMUM        0.00   1974
TOTALS          0.58               1.27   -0.69     0.73
DAILY AVG.      0.02               0.04   -0.02
DAYS >= .01       12
DAYS >= .10        2
DAYS >= .50        0
DAYS >= 1.00       0
GREATEST
 24 HR. TOTAL   0.14   05/22 TO 05/22
 STORM TOTAL    0.14

SNOWFALL (INCHES)
TOTALS            MM                2.7      MM
SINCE 7/1         MM               53.6      MM
SNOWDEPTH AVG.    MM
DAYS >= 1.0       MM

DEGREE DAYS
HEATING TOTAL    322                442    -120
 SINCE 7/1      8309               7905     404
COOLING TOTAL      0                  2      -2
 SINCE 1/1         0                  2      -2
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              9.5
RESULTANT WIND SPEED/DIRECTION   1/090
HIGHEST WIND SPEED/DIRECTION    39/290    DATE  05/26
                                39/190          05/30
HIGHEST GUST SPEED/DIRECTION    52/300    DATE  05/26

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.35
NUMBER OF DAYS FAIR           19
NUMBER OF DAYS PC             10
NUMBER OF DAYS CLOUDY          2

AVERAGE RH (PERCENT)     54

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             10     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       1
LIGHT RAIN               17     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       1
LIGHT SNOW                1     SLEET                      0
FOG                       6     FOG W/VIS <= 1/4 MILE      2
HAZE                      3

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

$$


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